The Actual Definition of Muscle Tone. Muscle tone, also known as muscle tonus or residual muscle tension, is an unconscious low level contraction of your muscles while they are at rest. Essentially, muscle tone is what makes your muscles still feel somewhat firm while you are resting and not intentionally tensing them.
Everyone experiences abdominal pain from time to time. Other terms used to describe abdominal pain are stomachache, tummy ache, gut ache and bellyache. Abdominal pain can be mild or severe. It may be continuous or come and go. Abdominal pain can be short-lived (acute) or occur over weeks and months (chronic).
Abdominal Pain (Stomach Pain), Short-term. Just about everyone has had a stomachache at one time or another. But sudden severe abdominal pain (stomach pain), also called acute pain, shouldn't be ignored. It often indicates a serious problem. Follow this chart for more information about acute abdominal pain. Or find more information about abdominal pain that has lasted for more than 3 days. Our trusted Symptom Checker is written and reviewed by physicians and patient education professionals.